Tecnogas Power Supply / Relay Board Error

Tecnogas oven displays F8 and may not start or may shut off during operation.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Low or unstable mains voltage, Failed power relay on control board, Loose connection at terminal block, Burnt wiring

Safety first: Turn off power at the breaker.

Steps:

Inspect the main terminal block where the power cord connects to the range. Tighten any loose screws and look for heat damage.
Verify that the supply voltage matches the Tecnogas rating plate using a multimeter (only if qualified).
Inspect the control board for burnt relays or tracks.

If the supply and wiring are correct, but F8 persists, the relay/control board likely needs replacement.

Hard 4/5

Power / Relay Control Board

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